www/jssrc/blerg/Post.js

   1 enyo.kind({
   2     name: "blerg.Post",
   3     kind: "Control",
   4     classes: "blerg-post",
   5     handlers: {
   6         onPostVisibility: "postVisibilityUpdate",
   7         onLogin: "loggedIn",
   8         onLogout: "loggedOut"
   9     },
  10     resizePostContentTimeout: null,
  11     components: [
  12         {tag: "h2", content: "What's on your mind?"},
  13         {kind: "onyx.InputDecorator", components: [
  14             {name: "postContent", classes: "content", kind: "onyx.TextArea", onkeydown: "resizePostContent", attributes: {tabindex: 4}}
  15         ]},
  16         {classes: "buttons", components: [
  17             {name: "loginReminder", tag: "span", classes: "blerg-error", style: "margin-right: 8px; vertical-align: 60%", content: "You must log in before posting."},
  18             {kind: "onyx.Button", content: "Close", onclick: "closePost", classes: "onyx-negative", attributes: {tabindex: 6}},
  19             {name: "postButton", kind: "onyx.Button", content: "Post", onclick: "doPost", classes: "onyx-affirmative", disabled: true, attributes: {tabindex: 5}}
  20         ]}
  21     ],
  22     create: function() {
  23         this.inherited(arguments);
  24     },
  25     getData: function() {
  26         return this.$.postContent.getValue();
  27     },
  28     setData: function(inVal) {
  29         this.$.postContent.setValue(inVal);
  30     },
  31     closePost: function() {
  32         this.bubble('onPostVisibility', {showing: false});
  33     },
  34     doPost: function() {
  35         this.bubble('onPost', {data: this.getData()});
  36     },
  37     postVisibilityUpdate: function(inSender, inEvent) {
  38         if (inEvent.showing) {
  39             this.show();
  40             this.$.postContent.focus();
  41             if (inEvent.data && this.getData() == "") {
  42                 this.setData(inEvent.data);
  43                 this.$.postContent.node.setSelectionRange(inEvent.data.length, inEvent.data.length);
  44             }
  45         } else {
  46             this.hide();
  47         }
  48     },
  49     resizePostContent: function(inSender, inEvent) {
  50         if (this.resizePostContentTimeout)
  51             clearTimeout(this.resizePostContentTimeout);
  52         this.resizePostContentTimeout = setTimeout(function() {
  53             var n = this.$.postContent.hasNode();
  54             if (!n)
  55                 return;
  56             var c = this.getData();
  57             var lines = Math.floor(c.length / (100 * (n.clientWidth / 1000))) + 1;
  58             var m = c.match(/\r?\n/g);
  59             if (m)
  60                 lines += m.length;
  61             if (lines <= 3) {
  62                 this.$.postContent.setStyle("");
  63             } else {
  64                 this.$.postContent.setStyle("height: " + (lines * 17) + "pt");
  65             }
  66             this.resizePostContentTimeout = null;
  67         }.bind(this), 150);
  68     },
  69     loggedIn: function() {
  70         this.$.postButton.setDisabled(false);
  71         this.$.loginReminder.hide();
  72     },
  73     loggedOut: function() {
  74         this.$.postButton.setDisabled(true);
  75         this.$.loginReminder.show();
  76     }
  77 });